Is Radeon RX Vega 64 supported by drm-next?

[Grzegorz Junka]

Did you mean 12-STABLE?

Let me reiterate to check if I've got it right. To support Vega I need 
to compile kernel >=1200066 from sources + kms-drm from drm-v4.15 
branch. If that's correct, will kernel 12x work with 11.1/11.2 userland 
or I will need to update to FreeBSD 12?

Thanks again for help
GrzegorzJ

On 18/06/2018 07:23, Johannes Lundberg wrote:
> Support for 4.15 wont be in until 11.3-RELEASE but it will be in 
> 11-STABLE soon though.
>
> 11.2 supports up to 4.11.
>
> On Mon, Jun 18, 2018 at 09:20 Grzegorz Junka <list1 at gjunka.com 
> <mailto:list1 at gjunka.com>> wrote:
>
>     On 18/06/2018 07:04, Johannes Lundberg wrote:
>>
>>
>>     On Mon, Jun 18, 2018 at 8:56 AM Grzegorz Junka <list1 at gjunka.com
>>     <mailto:list1 at gjunka.com>> wrote:
>>
>>         On 17/06/2018 17:29, Grzegorz Junka wrote:
>>         > Hello All
>>         >
>>         > According to various sources (including posts to freebsd-x11)
>>         > drm-stable-kmod supports Polaris (RX 4xx/5xx). Does it mean
>>         that
>>         > drm-next-kmod supports RX Vega?
>>         >
>>         > According to Wikipedia Radeon RX 580 is GCN 4th gen:
>>         > https://en.wikipedia.org/wiki/AMD_Radeon_500_series
>>         >
>>         > Which is the last generation before Vega, which in
>>         Wikipedia is marked
>>         > as GCN 5th gen:
>>         >
>>         https://en.wikipedia.org/wiki/List_of_AMD_graphics_processing_units
>>         >
>>         > So there is no other GPU left between them. There is also
>>         nothing else
>>         > beyond Vega, which suggests that the only difference between
>>         > drm-stable and drm-next is the additional support for the
>>         latest GPU -
>>         > Vega. Or I am missing something?
>>
>>         Answering my own question, looks like preliminary Radeon RX
>>         Vega support
>>         landed in Linux 4.12 with full support in 4.14/15. So it
>>         seems there is
>>         no additional Radeon GPU supported in drm-next-kmod (Linux
>>         4.11) that
>>         isn't already supported in drm-stable-kmod (Linux 4.9). The
>>         differences
>>         seem to be down to improvements in VM drivers and power
>>         management.
>>         Please let me know if you have other information.
>>
>>         Another question, is it possible to estimate work/time before
>>         Wayland/drm-kmod on FreeBSD supports Linux 4.12/14/15 or
>>         NVidia cards?
>>
>>
>>     You can try building the drm-v4.15 branch from source. It should
>>     work now with stock kernel (>=1200066).
>>     https://github.com/FreeBSDDesktop/kms-drm
>>
>>     I use it on my AMD Ryzen 3 2200G APU.
>>
>>     We're getting ready to release 4.15 as a port, however it's not
>>     bug free yet so it will be a -devel port.
>
>     Sounds great! Sorry for a n00bie question. Once support for
>     drm-kmod lands in the 11.2 kernel, will support for newer linuxkpi
>     KMS APIs (i.e. 4.15) also require kernel changes or they will be
>     supported through ports? I don't quite know how the support for
>     linuxkpi drivers is split between the kernel and userland.
>
>     Thanks
>     GrzegorzJ
>